Palladium-boron alloys and methods for making and using such...

Details Palladium-boron alloys and methods for making and using such... Palladium-boron alloys and methods for making and using such...

2008-06-03

2008-06-03

Ip, Sikyin (Department: 1793)

Alloys or metallic compositions

Palladium base

C420S464000, C420S465000, C148S430000, C148S678000

Reexamination Certificate

active

07381368

ABSTRACT:
A palladium-boron composition and methods of making and using same are provided. In one aspect, the invention comprises an alloy comprising palladium and boron, the boron being in solid solution in the palladium and the alloy having a two-phase structure, wherein each phase of the two-phase structure has the same crystal structure as the other phase and has a different set of lattice parameters from the other phase such that the palladium is greatly hardened by the presence of the smaller phase crystals within the spaces between the larger phase crystals. The composition is carefully prepared by a process wherein palladium and an amount of boron sufficient to place the boron in solid solution, but insufficient to combine with the palladium, are placed together and repeatedly are melted, cooled and turned over until sufficiently mixed. The hardened composition can be used to create thinner membranes for hydrogen purification and improved electrodes for generation of heat energy, and other electrochemical processes.

REFERENCES:
Sakamoto, Y; Baba, K.; Flanagan, Ted B., The effect of alloying of palladium on the hydrogen-palladium misibility gap, Z. Phys. Chem. (Munich) (1988), 158(2), 223-35. Cited in parent application.
Cited in parent application.

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